Production of amino acids by methylotrophic bacillus
CA 2030529 C · Owner: Hanson, Richard S. · Inventors: Schendel, Frederick J.; Hanson, Richard S.; Flickinger, Michael C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing amino acids by culturing an amino acid auxotroph of a biologically pure strain of a type I , methylotrophic bacterium of the genus Bacillus which exhibits sustained growth at 50°C using methanol as a carbon and energy source and requiring vitamin B12 and biotin is provided.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 9, 1990 and granted October 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.